Re: [PATCH v3 1/2] gpio: add GPO driver for PCA9570

[Sungbo Eo]

On 2020-07-01 06:30, Andy Shevchenko wrote:
> On Tue, Jun 30, 2020 at 7:08 PM Sungbo Eo <mans0n@xxxxxxxxxx> wrote:
> > NXP PCA9570 is 4-bit I2C GPO expander without interrupt functionality.
> > Its ports are controlled only by a data byte without register address.
> >
> > As there is no other driver similar enough to be adapted for it, a new
> > driver is introduced here.
>
> It looks good, but I would add ->get() to return buffered value.

Thanks, your suggestion was indeed valuable. I reworked the driver, 
please have a look.